Home / 105,454.88-158,240.64-43,169.12

Finding the Fourth Proportional to 105,454.88, 158,240.64 and 43,169.12

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Solution

The fourth proportional to 105,454.88, 158,240.64 and 43,169.12 is: 64,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.88 : 158,240.64 = 43,169.12 : x
  2. Step 2: Convert to fraction form
    105,454.88/158,240.64 = 43,169.12/x
  3. Step 3: Cross multiply
    105,454.88x = 158,240.64 × 43,169.12
  4. Step 4: Simplify right side
    105,454.88x = 6,831,109,177.04
  5. Step 5: Solve for x
    x = 6,831,109,177.04/105,454.88
  6. Step 6: Final answer
    x = 64,777.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.